<template>
  <div class="app-container">
    
     <el-form label-width="120px">
      <el-form-item label="讲师名称">
         <el-input 
        v-model="teacher.name"
        style="width:200px"
        />
      </el-form-item>
      <el-form-item label="讲师排序">
        <el-input-number v-model="teacher.sort" controls-position="right" min="0"/>
      </el-form-item>
      <el-form-item label="讲师头衔">
        <el-select v-model="teacher.level" clearable placeholder="请选择">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>
      <el-form-item label="讲师资历">
        <el-input v-model="teacher.career"/>
      </el-form-item>
      <el-form-item label="讲师简介">
        <el-input v-model="teacher.intro" :rows="10" type="textarea"/>
      </el-form-item>

      <!-- 讲师头像： -->
     <el-form-item label="讲师头像">
        <el-row :gutter="20">
          <el-col :span="24">
          <!-- 头衔缩略图 -->
            <pan-thumb :image="teacher.avatar"/>
          </el-col>
          <el-col :span="24">
            <!-- 文件上传按钮 -->
            <el-button 
            type="primary" 
            icon="el-icon-upload" 
            @click="imagecropperShow=true"
            >
            修改头像
            </el-button>
          </el-col>
        </el-row>
          <image-cropper
                        v-show="imagecropperShow"
                        :width="300"
                        :height="300"
                        :key="imagecropperKey"
                        :url="BASE_API+'/eduoss/fileoss'"
                        field="file"
                        @close="close"
                        @crop-upload-success="cropSuccess"/>
      </el-form-item>

      <el-form-item>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="save">保存</el-button>
        <el-button @click="cancel">取消</el-button>
      </el-form-item>
    </el-form>

  </div>
</template>
<script>
import teacherApi from '@/api/edu/teacher'
import ImageCropper from '@/components/ImageCropper'
import PanThumb from '@/components/PanThumb'
export default {
  components: { ImageCropper, PanThumb },
  data() {
    return {
      teacher:{
        name: '',
        sort: 0,
        level: 1,
        career: '',
        intro: '',
        avatar: ''
      },
      //上传弹框组件是否显示
      imagecropperShow:false,
      imagecropperKey:0,//上传组件key值
      BASE_API:process.env.BASE_API,
      saveBtnDisabled:false  // 保存按钮是否禁用,
    }
  },
   created() {
    const id = this.$route.params.id
    if (id) {
      this.getInfo(id)
    }
  },
  methods:{
    close() { //关闭上传弹框的方法
        this.imagecropperShow=false
        //上传组件初始化
        this.imagecropperKey = this.imagecropperKey+1
    },
    //上传成功方法
    cropSuccess(data) {
      this.imagecropperShow=false
      //上传之后接口返回图片地址
      this.teacher.avatar = data.url
      this.imagecropperKey = this.imagecropperKey+1
    },
    //根据讲师id查询的方法
    getInfo(id) {
      teacherApi.getTeacherInfo(id)
        .then(response => {
          this.teacher = response.data.teacher
        })
        .catch(error => {
          console.error("获取数据失败:", error)
          this.$message.error("加载讲师信息失败")
        })
    },
    save() {

        this.updateTeacher()
    },
    //修改讲师的方法
    updateTeacher() {
      teacherApi.updateTeacherInfo(this.teacher)
        .then(response => {
          //提示信息
          this.$message({
              type: 'success',
              message: '修改成功!'
          });
          //回到列表页面 路由跳转
          this.$router.push({path:'/teacher/list'})
        })
    },
    // 取消修改的方法
    cancel() {
      this.$confirm('修改的内容未保存，是否取消修改', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        // 点击确定，返回列表页面
        this.$router.push({path:'/teacher/list'})
      }).catch(() => {
        // 点击取消，不做处理，留在本页面
      });
    }

  }
}
</script>
